何谓滑动窗口分词：

比如原句：woods data hadoop
分词后为：

    woodswoods datawoods data hadoopdatadata hadoophadoop

创建索引，自定义分词方式：

使用ik_smart中文分词，并使用shingle过滤器（滑动窗口模式）

put test
{"settings": {"index": {"analysis": {"analyzer": {"shingle1": {"type":"custom","tokenizer":"ik_smart","filter":["shingle-filter"]}},"filter": {"shingle-filter": {"type":"shingle","min_shingle_size":2,  -- 设置最小和最大的滑动窗口尺寸"max_shingle_size":10, "output_unigrams":true  -- 是否保留原始的单个分词，默认true：保留}}}}},"mappings": {"my_type_name": {"dynamic": false,"_all": {"enabled": false},"properties": {"country": {"type": "keyword"},"age": {"type": "integer"}}}}
}

查询：

post test/_analyze
{"analyzer": "shingle1","text": "飞利浦吸尘器家用自营"
}

结果：

{"tokens": [{"token": "飞利浦","start_offset": 0,"end_offset": 3,"type": "CN_WORD","position": 0},{"token": "飞利浦 吸尘器","start_offset": 0,"end_offset": 6,"type": "shingle","position": 0,"positionLength": 2},{"token": "飞利浦 吸尘器 家用","start_offset": 0,"end_offset": 8,"type": "shingle","position": 0,"positionLength": 3},{"token": "飞利浦 吸尘器 家用 自营","start_offset": 0,"end_offset": 10,"type": "shingle","position": 0,"positionLength": 4},{"token": "吸尘器","start_offset": 3,"end_offset": 6,"type": "CN_WORD","position": 1},{"token": "吸尘器 家用","start_offset": 3,"end_offset": 8,"type": "shingle","position": 1,"positionLength": 2},{"token": "吸尘器 家用 自营","start_offset": 3,"end_offset": 10,"type": "shingle","position": 1,"positionLength": 3},{"token": "家用","start_offset": 6,"end_offset": 8,"type": "CN_WORD","position": 2},{"token": "家用 自营","start_offset": 6,"end_offset": 10,"type": "shingle","position": 2,"positionLength": 2},{"token": "自营","start_offset": 8,"end_offset": 10,"type": "CN_WORD","position": 3}]
}

此种分词方式适用于用户搜索词的模糊匹配，类似于hive中的rlike功能。
相较于使用match、match_phrase、regex的查询，该方式可以使用trem查询，效率大幅提高、且准确性几乎相同。